DAVID CAMERON has been warned that he will have “written his own death warrant” as Tory leader if he fails to win a majority at next year’s election after ditching plans to bring in quotas on European Union migrants.

Tory MPs said Cameron’s speech last week did not go far enough in tackling the need to control the numbers arriving and suggested he would be ousted unless the Conservatives win outright in May.

Cameron abandoned plans to introduce an emergency brake on EU arrivals after receiving indications that it would be blocked by EU leaders including, crucially, Angela Merkel, the German chancellor. Instead he announced a ban on working migrants claiming tax credits and social housing for four years after arriving in the UK.